timer.h

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#ifndef __TIMER_H__
#define __TIMER_H__

#include "common.h"


namespace CTF {
  #define MAX_NAME_LENGTH 53
      
  class Function_timer{
    public:
      char name[MAX_NAME_LENGTH];
      double start_time;
      double start_excl_time;
      double acc_time;
      double acc_excl_time;
      int calls;

      double total_time;
      double total_excl_time;
      int total_calls;

    public: 
      Function_timer(char const * name_, 
                     double const start_time_,
                     double const start_excl_time_);
      //Function_timer(Function_timer const & other);
      //~Function_timer();
      void compute_totals(MPI_Comm comm);
      bool operator<(Function_timer const & w) const ;
      void print(FILE *         output, 
                 MPI_Comm const comm, 
                 int const      rank,
                 int const      np);
  };


  class Timer{
    public:
      char const * timer_name;
      int index;
      int exited;
      int original;
    
    public:
      Timer(char const * name);
      ~Timer();
      void stop();
      void start();
      void exit();
      
  };

  class Timer_epoch{
    private:
      Timer * tmr_inner;
      Timer * tmr_outer;
      double save_excl_time;
      std::vector<Function_timer> saved_function_timers;
    public:
      char const * name;
      //create epoch called name
      Timer_epoch(char const * name_);

      ~Timer_epoch(){
        saved_function_timers.clear();
      }
      
      //clears timers and begins epoch
      void begin();

      //prints timers and clears them
      void end();
  };


  class Flop_counter{
    public:
      int64_t  start_count;

    public:
      Flop_counter();
      ~Flop_counter();

      void zero();

      int64_t count(MPI_Comm comm = MPI_COMM_SELF);

  };

}


#endif